Mineral Specimen Images (J)

Jensenite: Cu++3Te++++++O6·2(H2O)

Comments: Small green crystals of jensenite in matrix.
Location: Centennial Eureka Mine, Tintic District, Juab Co., Utah, USA. Scale: Picture size 1.2 mm.
© Thomas Witzke / Abraxas-Verlag

Jensenite: Cu++3Te++++++O6·2(H2O)

Comments: Small green crystals of jensenite in matrix.
Location: Centennial Eureka Mine, Tintic District, Juab Co., Utah, USA. Scale: Picture size 1.2 mm.
© Thomas Witzke / Abraxas-Verlag

Jentschite: TlPbAs2SbS6

Comments: Black and dark red translucent needles of jentschite on white dolomite.
Location: Lengenbach quarry, Binntal, Valais, Switzerland. Scale: Picture width 1 cm.
© Walter Gabriel

Jentschite: TlPbAs2SbS6

Comments: Black and dark red translucent needles of jentschite on white dolomite.
Location: Lengenbach quarry, Binntal, Valais, Switzerland. Scale: Picture width 1 cm.
© Walter Gabriel

Jeppeite: (K,Ba)2(Ti,Fe+++)6O13

Comments: Dark brown crystalline granular jeppeite.
Location: Walgidee Hills, Western Australia, Australia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Jeppeite: (K,Ba)2(Ti,Fe+++)6O13

Comments: Dark brown crystalline granular jeppeite.
Location: Walgidee Hills, Western Australia, Australia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Jeremejevite: Al6B5O15(F,OH)3

Comments: Two-toned hexagonal crystal of jeremejevite with blue bases and white terminations.
Location: Erongo Mountains, Namibia. Scale: Crystal size 2 cm.
© John Veevaert

Jeremejevite: Al6B5O15(F,OH)3

Comments: Partial crystal fragment of jeremejevite.
Location: Mile 72, Swakopmund, Namibia. Scale: Crystal size 0.5 cm.
© John Veevaert

Jeremejevite: Al6B5O15(F,OH)3

Comments: Two-toned hexagonal crystal of jeremejevite with blue bases and white terminations.
Location: Erongo Mountains, Namibia. Scale: Crystal size 2 cm.
© John Veevaert

Jeremejevite: Al6B5O15(F,OH)3

Comments: Partial crystal fragment of jeremejevite.
Location: Mile 72, Swakopmund, Namibia. Scale: Crystal size 0.5 cm.
© John Veevaert

Jeromite: As(S,Se)2

Comments: Orange, powdery jeromite on matrix.
Location: Salar de Surire, Tarapaca, Chile. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Jeromite: As(S,Se)2

Comments: Orange, powdery jeromite on matrix.
Location: Salar de Surire, Tarapaca, Chile. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Jerrygibbsite: (Mn,Zn)9(SiO4)4(OH)2

Comments: Pale pink interlocking anhedral jerrygibbsite grains associated with black zincite and franklinite. Co-type specimen.
Location: Parker Shaft, Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA. Scale: See Image.
© Rruff Database

Jerrygibbsite: (Mn,Zn)9(SiO4)4(OH)2

Comments: Pale pink interlocking anhedral jerrygibbsite grains associated with black zincite and franklinite. Co-type specimen.
Location: Parker Shaft, Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA. Scale: See Image.
© Rruff Database

Jervisite: (Na,Ca,Fe++)(Sc,Mg,Fe++)Si2O6  
Cascandite: Ca(Sc,Fe++)Si3O8(OH)

Comments: White, acicular jervisite crystals and pink cascandite crystals.
Location: Seula min,, Mount Camoscio, Oltrefiume, Baveno, Verbano-Cusio-Ossola Province, Piedmont, Italy. Scale: Crystal Size 1 mm.
© Sergio Varvello / Mineral Service

Jervisite: (Na,Ca,Fe++)(Sc,Mg,Fe++)Si2O6  
Cascandite: Ca(Sc,Fe++)Si3O8(OH)

Comments: White, acicular jervisite crystals and pink cascandite crystals.
Location: Seula min,, Mount Camoscio, Oltrefiume, Baveno, Verbano-Cusio-Ossola Province, Piedmont, Italy. Scale: Crystal Size 1 mm.
© Sergio Varvello / Mineral Service

Jimboite: Mn3B2O6

Comments: Dark red-brown crystalline jimboite veinlet in massive rhodochrosite.
Location: Rito Mine, Azuma Mura, Seta-gun, Gumma, Japan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Jimboite: Mn3B2O6

Comments: Dark red-brown crystalline jimboite veinlet in massive rhodochrosite.
Location: Rito Mine, Azuma Mura, Seta-gun, Gumma, Japan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Jimthompsonite: (Mg,Fe++)5Si6O16(OH)2  
Clinojimthompsonite: (Mg,Fe++)5Si6O16(OH)2

Comments: Pale green to white glassy crystalline fibrous clinojimthompsonite intergrown with jimthompsonite.
Location: Chester, Windsor County, Vermont, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Jimthompsonite: (Mg,Fe++)5Si6O16(OH)2  
Clinojimthompsonite: (Mg,Fe++)5Si6O16(OH)2

Comments: Pale green to white glassy crystalline fibrous clinojimthompsonite intergrown with jimthompsonite.
Location: Chester, Windsor County, Vermont, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species